: You do not need to extract it. Simply double-click the file.
: Visit the official Microsoft Download Windows 10 page. This will provide the current Media Creation Tool (typically for version 22H2). Download Media Creation Tool21H2 rar
: The popular, open-source tool Rufus has a built-in "Download" script that allows you to select specific older versions of Windows, including 21H2 , directly from Microsoft's servers. : You do not need to extract it